What does OET stand for?

What does OET mean?

OET	Office of Engineering and Technology Governmental » US Government
OET	Office of Educational Technology Governmental » US Government
OET	Office of Educational Technology Academic & Science » Universities
OET	Office of Employment and Training Governmental » State & Local
OET	Online Education and Training Community » Educational
OET	Opinion Editor Time Community » Media
OET	Office of Emergency Transportation (DOT) Governmental » Military